> If you can shave off an hour of dev time with $40 in LLM credits, that's $26.50 cheaper than having them do it without.

This assumes that that hour shaved was used elsewhere productively which is not the case.

Yeah, that's part of why I said I'm not entirely convinced. 1 hours vs 2 hours is an unrealistic example. I do still think it can make sense, but the extra actual productivity is probably more in the vein of "getting an extra hour on a 10 or 20 hour project".